I upgraded a Lenovo ThinkPad T60p from Ubuntu Dapper to Edgy, and
since then, Nautilus crashes at boot-time. I tried reinstalling Gnome
and Nautilus from apt-get, but it still crashes, Running "sudo
nautilus" from the CLI generates these errors:

$ sudo nautilus
Password:

(nautilus:14672): GLib-CRITICAL **: g_file_get_contents: assertion
`filename != NULL' failed

** (nautilus:14672): WARNING **: Unable to load ui file
nautilus-navigation-window-ui.xml


(nautilus:14672): Gtk-CRITICAL **: gtk_ui_manager_add_ui_from_string:
assertion `buffer != NULL' failed

(nautilus:14672): Gtk-CRITICAL **: gtk_table_attach: assertion
`GTK_IS_WIDGET (child)' failed

I need to get Nautilus running again!

Hi, thanks for the question.

When you reinstalled Gnome and Nautilus, have you removed the
configuration files as well? You can use two commands to do that:
"sudo apt-get remove --purge ABC" or "sudo aptitude purge ABC"
(without the quotes). After that reinstall them Nautilus and Gnome:
"sudo apt-get install ABC" or "sudo aptitude install ABC"

Maybe that will help.

Source: http://monkeyblog.org/ubuntu/installing.html

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LMCS